Logarithmic delocalization of end spins in the S=3/2 antiferromagnetic Heisenberg chain

Gabor Fath, Ors Legeza, Peter Lajko +1

Using the DMRG method we calculate the surface spin correlation function, $C_L(l)=<S_l^z{S}_{L+1-l}^z>$, in the spin $S=3/2$ antiferromagnetic Heisenberg chain. For comparison we a…